<!DOCTYPE html>
<html>
<head>
    <meta charset="utf-8">
    <title>快速傅立叶变换</title>
</head>
<style>
	body{
		background: rgb(50, 54, 57);
	}
</style>
<body>
  <canvas id="canvas" width="1000" height="300"></canvas>

    <audio id="audio" src="./mp3/杨子姗 - 微甜的回忆.mp3" controls></audio><br />
    音量
    <input id="range" type="range" />
      <button name="dial" id="dial" onclick="_play()">_play</button>
      <!-- <button name="dial" id="dial" onclick="_stop()">_stop</button> -->

      <script src="index.js"></script>
</body>
</html>